The Design, Based On The Pxa310 Embedded Multimedia Terminals

Single-function embedded products can not meet the growing needs of the people,for example,a simple function digital camera,a simple function MP3 music player,as well as a simple voice phone call also will be placed by the more powerful alternative products.In addition to the field of consumer electronics products,in other fields gradually embedded multi-function products,as an integrated platform,are improved for performance while meeting the various needs of people.Baseing on the analysis of the status of the multimedia terminal,designing and developing a multimedia terminal system based on the choice of the PXA310.Firstly,researched multimedia terminal system hardware,using Marvell's PXA310 as the host processor,the overall structure as the core board plus expansion of the mode of interface board.Analysised the characteristics of multimedia the PXA310 processor supported on and researched multi-media module interface.Secondly,researched the multi-media terminal system.Analysised multimedia features that Windows Embedded CE operating system supports.Finally,basing the PXA310 processor,in use for the Windows Embedded CE operating system,application layer from the bottom drivers to top application layer,had builded an embedded multimedia terminal systems,to Microsoft's Eboot for reference,I havd developed convenient BootLoader of the system,during the development of Camera driver and H264 video codec development,the use of the IPP library makes the processor processes data and compute more effectively.In the application layer,developed a application to capture,preview,video and audio record.At the same time,in order to make use of subsequent video network transmission,the system also added a video codec H264, video format h264 encoding and decoding be developed in the system.The entire system development methods and experience make others with good use of the meaning and practical value in the embedded system development.